Rajkumar Sharma is on the board of Mangalore Refinery & Petrochemicals Ltd., Lumding Plywood Pasting Pvt Ltd., Makhan Bhog Ventures Pvt Ltd. and Meghalaya Boards Pvt Ltd. and Member of Institute of Company Secretaries of India and Executive Member at All India Marwari Yuva Manch.

In the past he occupied the position of Chairman of N E Chapter of Institute of Co. Secretaries of India.